Telecommunications - network to customer installation interfaces - analog voicegrade special access lines using customer - installation - provided loop - start supervision 电信.网络与用户装置接口.为用户装置提供环路启动监控的模拟音频专用访问线路
Telecommunications - interface between carriers and customer installations - analog voice grade switched access lines using loop - start and ground - start signaling with line - side answer supervision feature 电信.载体和用户装置间的接口.带边线应答性能的环路启动和接地启动信令的模拟音频转换访问线路
Telecommunications - network to customer installation interfaces - analog voicegrade switched access lines with calling number delivery , calling name delivery , or visual message waiting indicator features 电信.网络和用户装置间的接口.带呼叫号码传送呼叫姓名传送或可视信息等待显示功能的模拟音频转换访问线路
Telecommunications - network and customer installation interfaces - analog voicegrade switched access lines with the call waiting , distinctive call waiting , or calling identity delivery on call waiting feature 电信.网络和用户装置间的接口.带呼叫延时区别性呼叫延时或呼叫延时中呼叫身份传送功能的模拟音频转换访问线路
An idc study showed that 10 million access lines were substituted by wireless ones as of the end of 2001 . wireless access lines were used mainly by consumers when installing the second access lines in their homes 据idc研究表明，截止2001年年底， 1000万接入线路被无线所取代，主要是消费者在家庭安装第二根接入线路时选择了无线业务。
Cernet users are always affected by the communication bottleneck between cernet and chinanet . even if the users have access lines for the two networks at the same time , they also have to inconveniently switch the connection between the two networks by hand 教育网接入用户长期受到chinanet和cernet之间通信瓶颈的影响,即使同时拥有两个网络的接入线路,用户也需要靠手动切换来选择网络,很不方便。
In 2002 , more and more wireline service will be substituted . by the year 2005 , 10 million more access lines will be substituted . such a change will bring enormous market opportunity to wireless operators and serious threats to wireline operators 到2002年，越来越多的有线服务被取代，到2005年将又有1000万的接入线路被无线所取代，这种转变对无线运营商来说意味着很大的市场机会，对有线运营商来说也是一个很大的威胁。
Different from traditional routers , the gateway proposed here focuses on the routing strategies rather than the routing protocol itself . it maximizes the utilization rate of each network access line by forwarding data packets according to the routing strategies of each network respectively 与传统路由器不同,本文提出的转发网关,并不关心路由协议本身,而将重点放在路由策略上,通过访问两个网络的不同路由策略实现数据包的动态转发,使得每条接入线路的利用率达到最大。
